Truck cap assembly



FIG. 1 is a left side view of a truck cap assembly in accordance with our design;

FIG. 2 is a right side view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a rear view thereof; and,

FIG. 5 is a front view thereof.

The broken lines in the figures illustrate the environmental structure on which the truck cap assembly is used and form no part of the claimed design. 

CLAIM The ornamental design for a truck cap assembly, as shown and described. 